CVE-2026-88032

HighCVSS 7.5/10Last modified Sep 16, 2026

Description

A use-after-free in the reactive client-side encryption component of the MongoDB Java Driver can cause native resources to be freed while an affected encrypted operation is still using them when the operation is cancelled. A party able to cause such an operation to be cancelled may cause the hosting application process to terminate. Reaching the issue requires an affected reactive encryption configuration that retrieves KMS credentials on demand.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-416

Affected software

Vendor	Product	Versions
MongoDB	Java Driver	>= 4.2.0, < 5.11.1
MongoDB	org.mongodb:mongodb-crypt Maven package	>= 1.4.0, < 5.11.1
MongoDB	org.mongodb:mongodb-driver-reactivestreams Maven package	>= 4.6.0, < 5.11.1

References

https://jira.mongodb.org/browse/JAVA-6276Vendor Advisory

Timeline

Published: Sep 10, 2026
Last modified: Sep 16, 2026
NVD status: Analyzed

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